BBK TB vs. PORTED TB
Thread Starter
Staging Lane
Joined: Nov 2010
Posts: 50
Likes: 0
From: Jersey
BBK TB vs. PORTED TB I have a 1996 Trans Am WS6. It is mostly stock, the only upgrades are 3.73 gears, a K&N filter, NGK plugs, and a Magnaflow exhaust (swapping it for a GMMG cat back that came in the mail today). I recently bought a Hypertech programmer and BBK 58mm TB to get a little extra power. The BBK TB came in the mail today, and on the left side where the sensor bolts into it, there is a bolt snapped in the hole, so I have to send it back in exchange for a new one...
BUT here is my question. Since this is mainly a show car and a driver rather than a race car, and I don't plan on doing any radical upgrades, would there be any benefits to a BBK 58mm over a ported stock TB? The reason I ask is because I also purchased a nice TB plate with a TA bird on it, and the BBK does not have bolt holes on the top for this plate. Should I exchange the BBK for a new one, or just return it and buy a ported stock TB so I can still have the nice plate? If ported stock is the way to go, where can I buy one already done and ready to bolt in?
BUT here is my question. Since this is mainly a show car and a driver rather than a race car, and I don't plan on doing any radical upgrades, would there be any benefits to a BBK 58mm over a ported stock TB? The reason I ask is because I also purchased a nice TB plate with a TA bird on it, and the BBK does not have bolt holes on the top for this plate. Should I exchange the BBK for a new one, or just return it and buy a ported stock TB so I can still have the nice plate? If ported stock is the way to go, where can I buy one already done and ready to bolt in?
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Thread Starter
Staging Lane
Joined: Nov 2010
Posts: 50
Likes: 0
From: Jersey
Alright thanks for the replies everyone. I ended up returning the 58mm BBK and I bought a used 52mm ported stocker, machined by the same guy who does the TB plates for ws6store... It was also powder coated black which is a plus.
I have to ask though, what is wrong with the Hypertech programmers? Now I am thinking about returning that and getting something else, any recommendations?
And while I'm at it, I read a magazine article somewhere in the past couple years that explained the ratio for rocker arms, and a 1.65 for example would increase lift over a 1.5... I was thinking about replacing the stock rocker arms with roller rockers... Would that show any increase in power? If so, what brand and ratio would be recommended?
I am really just trying to maximize the performance on my TA without getting into the motor or anything. I would love to do a H/C combo but not right now lol. Are there any other upgrades you would recommend?
Thanks everyone
I have to ask though, what is wrong with the Hypertech programmers? Now I am thinking about returning that and getting something else, any recommendations?
And while I'm at it, I read a magazine article somewhere in the past couple years that explained the ratio for rocker arms, and a 1.65 for example would increase lift over a 1.5... I was thinking about replacing the stock rocker arms with roller rockers... Would that show any increase in power? If so, what brand and ratio would be recommended?
I am really just trying to maximize the performance on my TA without getting into the motor or anything. I would love to do a H/C combo but not right now lol. Are there any other upgrades you would recommend?
Thanks everyone
Thread Starter
Staging Lane
Joined: Nov 2010
Posts: 50
Likes: 0
From: Jersey
I basically just want to do simple bolt ons to make driving a bit more fun... not that it isn't fun already... but you can never have enough power right?
So I did the ca back which sounds amazing, I did the K&N filter, a stock poted TB, a programmer... What else is there without going overboard?
TECH Apprentice
Joined: Mar 2007
Posts: 313
Likes: 5
From: Eastern PA
You could do the coolant throttle body bypass which is good for a few hp. There aren't too many free mods after that that will gain you anything big.
Headers and a mail order tune would be my choice. GMMG + headers with a catted y is one of the best sounding exhaust combos for these cars.
You could also focus on suspension. A good set of shocks and springs will make the car more fun to drive. Sub frame connectors are also a must; they will tighten the whole car up.
Headers and a mail order tune would be my choice. GMMG + headers with a catted y is one of the best sounding exhaust combos for these cars.
You could also focus on suspension. A good set of shocks and springs will make the car more fun to drive. Sub frame connectors are also a must; they will tighten the whole car up.